In this myth system, a sword named Kusanagi is used by a deity who is born when another deity washes himself upon returning from the underworld. Another deity born from that event was created from Izanagi's left eye, and has 
In this myth system, a sword named Kusanagi is used by a deity who is born when another deity washes himself upon returning from the underworld. Another deity born from that event was created from Izanagi's left eye, and has a brother named Tsukuyomi; that deity is the sun goddess Amaterasu. For 10 points, name this myth system whose worshippers revere spirits called kami, the traditional religion of Japan.
In this myth system, a sword named Kusanagi is used by a deity who is born when another deity washes himself upon returning from the underworld.
{Shinto} [prompt on {kami} worship or similar answers]